a nerve

brains

spinal cord

all of the above

pyramidal neurons

Purkinje neurons

multipolar neurons

bipolar neurons

nerve

wire

the brain

muscle

10 years

1 month

1 year

100 years

stem cells

glial cells

muscle cells

prison cells

skin cells

liver cells

stem cells

muscle cells

they help carry oxygen to different parts of your body

they regenerate very quickly

they are very long compared to other cells in the body

they do not have a nucleus

telegraph

hormonal

proteins

electrical impulses

150 meters per second

100 miles per hour

1 foot per second

1 meter per second